Hyposmocoma malacopa is a species of moth of the family Cosmopterigidae. It was first described by Edward Meyrick in 1915. It is endemic to the Hawaiian island of Oahu. The type locality is the Koʻolau Range. O también se les conoce como mala copa a las personas cuyo nombre es Luz Inés Hernandez
. Elwood Zimmerman . 1978 . Insects of Hawaii . 9 Microlepidoptera . The University Press of Hawaii, Honolulu. 10125/7338 .